On the Feasibility of Overcoming Frequency Encoding Limitations Near Metal Implants with Broadband Single-Point Imaging on Clinical MR Systems

Kevin Koch 1 and Graeme McKinnon 1

1
GE Healthcare, Milwaukee, WI, United States

It has been established that all frequency encoded
imaging acquisitions have encoding limitations that are
reached near commonly encountered implants at 3T. Here,
we present a study whereby the known limitations on
clinical MR scanners are modeled in the context of
broadband single-point imaging. The resolution, scan
time, and T2* signal loss of such a clinically viable
single-point-imaging implementation are discussed. It is
shown that such an implementation may provide signal
directly near metal implants that cannot be acquired via
any conventional readout-driven sequence

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